Introduction: Gulfstemi Gulf Semiconductor (Shandong) Co., Ltd. was established in 1987. Gulfstemi is a global manufacturer of discrete power rectifiers. Gulfstemi's main products include single-phase glass passivated bridge rectifiers, ultra fast rectifiers with high-speed switching functions, and sintered glass junction ultra fast avalanche rectifiers; Gulfstemi's products are mainly suitable for the lighting, power supply, and consumer electronics (TV/monitor) industries.